<template>
  <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input
        v-model="form.name"
        style="width: 80%"
        placeholder="1-50个字符"
      />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input
        v-model="form.code"
        style="width: 80%"
        placeholder="1-50个字符"
      />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width: 80%" placeholder="请选择">
        <el-option
          v-for="item in list"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input
        v-model="form.introduce"
        style="width: 80%"
        placeholder="1-300个字符"
        type="textarea"
        :rows="3"
      />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeeSimple } from "@/api/employees";
import {
  addDepartments,
  getDepartDetail,
  updateDepartments,
} from "@/api/department";
export default {
  created() {
    this.loadEmployees();
    if (this.isEdit) {
      this.loadDepartmentDetail();
    }
  },
  props: {
    pid: {
      required: true,
      type: String,
    },
    isEdit: {
      required: true,
      type: Boolean,
    },
    originList: {
      required: true,
      type: Array,
    },
  },
  methods: {
    hCancel() {
      this.$emit("close");
    },
    async doAdd() {
      const d = { ...this.form, pid: this.pid };
      await addDepartments(d);
      this.$emit("success");
    },
    async doEdit() {
      await updateDepartments(this.form);
      this.$emit("success");
    },
    hSubmit() {
      // 表单校验
      this.$refs.deptForm.validate((valid) => {
        if (valid) {
          this.isEdit ? this.doEdit() : this.doAdd();
        }
      });
      // 具体做添加
    },
    async loadDepartmentDetail() {
      const res = await getDepartDetail(this.pid);
      this.form = res.data;
    },
    async loadEmployees() {
      const res = await getEmployeeSimple();
      console.log("res", res);
      this.list = res.data;
    },
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log(value, this.originList);
      //1.已经存在部门编号
      let existCodeList = this.originList.map((item) => item.code);
      //如果是编辑状态，把当前编辑部门编号排除在外
      if (this.isEdit) {
        //(1)根据当前编号找到对应部门code
        const curDep = this.originList.find((item) => item.id === this.pid);
        const curCode = curDep.code;
        existCodeList = existCodeList.filter((item) => item !== curCode);
      }
      //2.在已经存在部门做判断
      if (existCodeList.includes(value)) {
        callback(new Error(value + ":编码被占用了"));
      } else {
        callback();
      }
    };
    const validName = (rule, value, callback) => {
      console.log(value, this.originList);
      //1.当前被占用部门名字
      //在所有部门中，找pid为当前父组件中点击添加时，拿到部门id
      let existNameList = this.originList
        .filter((item) => item.pid === this.pid)
        .map((item) => item.name);
      if (this.isEdit) {
        const obj = this.originList.find((item) => item.id === this.pid);
        const pid = obj.pid;
        existNameList = this.originList
          .filter((item) => item.pid === pid && item.id !== this.pid)
          .map((item) => item.name);
      }

      //2.在已经存在部门做判断
      if (existNameList.includes(value)) {
        callback(new Error(value + ":名称被占用了"));
      } else {
        callback();
      }
    };
    return {
      list: [],
      form: {
        name: "新部门",
        code: "123",
        manager: "",
        introduce: "部门介绍",
      },
      rules: {
        name: [
          { required: true, message: "部门名称不能为空", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "部门名称要求1-50个字符",
            trigger: "blur",
          },
          { validator: validName, trigger: "blur" },
        ],
        code: [
          { required: true, message: "部门编码不能为空", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "部门编码要求1-50个字符",
            trigger: "blur",
          },
          { validator: validCode, trigger: "blur" },
        ],
        manager: [
          { required: true, message: "部门负责人不能为空", trigger: "blur" },
        ],
        introduce: [
          { required: true, message: "部门介绍不能为空", trigger: "blur" },
          {
            min: 1,
            max: 300,
            message: "部门介绍要求1-300个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },
};
</script>